diff --git a/Eigen/src/Core/arch/AltiVec/MatrixProduct.h b/Eigen/src/Core/arch/AltiVec/MatrixProduct.h
index e86cc5b4f..54a7195f8 100644
--- a/Eigen/src/Core/arch/AltiVec/MatrixProduct.h
+++ b/Eigen/src/Core/arch/AltiVec/MatrixProduct.h
@@ -2714,10 +2714,10 @@ EIGEN_ALWAYS_INLINE bool supportsMMA()
 #if defined(EIGEN_ALTIVEC_MMA_ONLY)
   return true;
 #else
-#if EIGEN_COMP_LLVM
-  return false;  // No dynamic dispatch for LLVM
-#else
+#if defined(EIGEN_ALTIVEC_MMA_DYNAMIC_DISPATCH) && __has_builtin(__builtin_cpu_supports)
   return __builtin_cpu_supports ("arch_3_1") && __builtin_cpu_supports ("mma");
+#else
+  return false;  // No dynamic dispatch for LLVM
 #endif
 #endif
 }